Preserve OST file location in new installation?

Outlook version
Outlook 2016 64 bit
Email Account
IMAP
#1
I use Office 365 (desktop), and currently my various *.ost files are located in F:\Libraries\Documents\Office\Outlook.

I'm planning on a fresh Windows reinstall, and reinstall applications as required. When it comes to Outlook, it will create new *.ost files in the default location.

Is there a way to specify the default location before adding accounts in Outlook? I understand that the existing *.ost files can't be re-used, so is there a way to preserve the emails in the current *.ost files? There are 3, and the respective file sizes are 191/413MB and 1.22GB. So a fair amount of emails.

Any suggestions will be welcomed.

Thanks.
 
Outlook version
Outlook 2016 32 bit
Email Account
Office 365 Exchange
#2
Export the profile from the registry - restore it then you can reuse the ost files.

If you want to make new ost file, you can set the default location using either a registry key or a junction point.
Moving an Exchange Offline Data File (*.ost)
 
Outlook version
Outlook 2016 64 bit
Email Account
IMAP
#3
Thank you.

By registry profile, do you mean this:
Computer\HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook

And do I restore it before\after I've reinstalled Outlook?
 
Outlook version
Outlook 2016 64 bit
Email Account
IMAP
#4
Or is it
Computer\HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook \Profiles

The ForceOSTPath string value is in Computer\HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook, so I'm not sure which one to export.

Thanks again.
 
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